The software described in this documentation is either in Extended Support or Sustaining Support. See for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

1.1.3 About UEK Release 3

The kernel version in UEK Release 3 (UEK R3) is based on the mainline Linux kernel version 3.8.13. Low-level system utilities that expect the kernel version to start with 2.6 can run without change if they use the UNAME26 personality (for example, by using the uname26 wrapper utility).

The UEK R3 kernel packages are available on the ol6_x86_64_UEKR3_latest channel. For more information, see Unbreakable Enterprise Kernel Documentation.